Heat exchanger



Sept. 28, 1954 w. J. KEEsLlNG HEAT EXCHANGER 2 Sheets-Sheet l Filed April 22, 1955 ATTORNEY atented Sept. 28, 1954 UNITED STATES PATENT OFFICE HEAT EXCHANGER william J. Keesling, Anderson, Ind.

Application April 22, 1953, Serial No. 350,479

Claims.

This invention relates to a novel heat exchanger for simultaneously raising the temperature of oneliquid and reducing the temperature of another liquid; A system of passages is provided for each of the liquids and the passages of one of said systems are in close proximity to those yfor the other system to permit eiiective heat exchange. All of the passages are within a body having two inlets for the two liquids respectively, and two outlets for said liquids, providing for quick and easy installation in two liquid-conducting lines.

One object of the invention is to provide a novel construction in which there are two sets of radial liquid passages for the two liquids, respectively, the passages for one liquid being interposed between those for the other liquid.

Another object is to provide one set of longitudinal passages communicating with the radial passages for one liquid, and a second set of longitudinal passages communicating with the radial passages for the other liquid.

A further object of the invention is to provide two heads for the device, one having the inlet and outlet for one set of the longitudinal and radial passages and the other having the inlet and outlet for the other set.

A still further object of the invention is to provide the two heads with novel conducting means for coaction with two baliie disks in establishing proper communication between the inlets and outlets and the longitudinal passages.

Another object of the invention is to provide a novel construction in which a plurality of duplicate disks, disposed sidcto-side between the two heads, are recessed in a novel way to form both the radial and the longitudinal passages.

Yet another object of the invention is to provide a novel construction which may be expeditiously manufactured and profitably marketed at a reasonable price.

With the above and other objects in view that will become apparent as the nature of the invention is better understood, the same consists 1n the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings, and particularly claimed.

In the drawings:

Fig. 1 is an end elevation partly in section, on line I-I of Fig. 3;

Fig. 2 is an opposite end elevation on line 2-2 of Fig. 3;

Fig. 3 is a longitudinal sectional view on line 3--3 of Fig. 1;

Figs. 4, 5, and 6 are transverse sectional views on lines 4-4, 5 5, and 6-5 of Fig. 3, respectively.

A preferred construction has been disclosed and will be rather specifically described but it is to be understood that variations may be made within the scope of the invention as claimed.

Briefly described, the device comprises a plurality of identical fiat disks IB, two flat baiiie disks II and I2 respectively, and two flat-ended heads I3 and I4 respectively. These elements are relatively assembled to provide a cylindrical body, said elements being held in assembled relation 'by any suitable means, for example, tie bolts I5. The identical disks I are disposed side-to-side in a group forming the major part of the length of the device, .the baiie disks II and I2 are in contact with the ends of said group of disks IU, and the two heads I3 and I4 contact with the baiiie disks II and I2 respectively.

The head I3 is formed. with a central coldliquid inlet I5 and with a cold-liquid outlet Il radially spaced from said inlet I6. The head I4 is formed with a central hot-liquid inlet i8 and with a hot-liquid outlet I9 radially spaced from said inlet I8. The cold-liquid inlet I6 communicates with a central chamber 2S formed in the inner end of the head I3 and the coldliquid outlet II communicates with a continuous circumferentially extending channel 2I in said inner end of said head I3. The hot-liquid inlet I8 extends entirely through the head I4, and the hot-liquid outlet I9 communicates with a channel 22 corresponding to the above described channel 2l, but formed in the head I4.

The baliie disk II has an inner series of circumferentially and uniformly spaced openings 23 which directly communicate with the chamber 20, as seen in Figs, 3 and 4. This bame disk II also has an outer series of circumierentially spaced openings 24 which directly communicate with the channel 2 I, as also seen in Figs. 3 and 4. The openings 24 are equal innumber to the openings 23 and each opening 24 of the outer series is in truly radially spaced relation from the corresponding opening 23 of the innerseries.

The baffle disk I2 (see Figs. 3 and 5) has a central opening directly communicating with the hot-liquid inlet IS of the head I4. This bale disk I2 also has a series of openings Z in direct communication with the channel 22 of the head I4. The openings 26 are the same distance from the axis of the device as the above described openings 24 of the baiile disk I I and their spacing is the same. However, the openings 2s would be positioned between the openings 2c if the two baffle plates II and I2 could be moved axially into contact with each other without turning either of said baiile plates from the position it occupies in use.

As all of the disks I are identical, a description of one will suiiice and reference is invited more particularly to Figs. 3 and 6. This plate has a central opening 21, preferably of the same diameter as the central opening 25 of the baffle disk I2. The disk IU also has inner circumferentially spaced openings 28 for alignment with theinner openings 23 of the baffle disk II, and outer circumferentially spaced openings 29 for alignment with the outer openings 24 of said baffle disk II. The inner and outer openings 28 and 29 are con# nected by radial grooves 30 formed' in yone-side of the disk I0. This disk I6 has-other-openings 3| between the openings 29 for alignment with the outer openings 26 of the bafiie'disk I2, andfsafid openings 3l are connected with the central opening 21 of the disk I0 by vmeans-of grooves `32. All of the grooves 3|) and 32 are formed in the same side of the disk I0.

1When the elements II), II, I2, I3, and Ill :are relatively assembled, passages are*provided.for both the hot liquid and the cold liquid. See iirst. the lower portion of Fig. 3. The inner openings 28 of the disks I0 form an inner set of longitudinal circumferentially spaced passages for the cold liquid. These passages communicate at `one end with the openings 23 of thebafle disk H- and are thereby placed in communication with the central chamber 20 of the head I3. The other ends of these longitudinal passages (formed by the openings 28) are closed by the baiTIe disk I2. The outer openings 2S) of the disks Iilforman outer set oflongitudinal circumierentially spaced passageswhich at one end communicate with 4the outer openings 24 of thebaiile disk I I yandare thus placed in communication with the channel ZI of the head I3. The grooves 30 ofthe disks I0 form one set of radial passages connecting the inner and outer longitudinal passages (formed by 28 and 29, respectively). Thus, the'cold liquid entering through'the inlet I6 willilowas indicated bY the arrows at the lowerportion of Fig. 3.

Refer now tothe central and upper portions of Fig. 3. The central openings -21 of the disks vIl) form a central longitudinal passage which, atone end, is placed in communication with the hotliquid inlet I8 by means of the central opening 25 of the baie disk I2. The otherzend yof this central passage is closed by the other baiile disk II. The outer openings 34 of the disks kIll form an outer set of longitudinal passages which, at oneend, communicate with the channel .22 ofthe head I4 by means of the openings .26 of the baie disk I2. The other ends of these ylongitudinal passages (formed by openings 3l) are closed by the baiile -disk II. The grooves 32 of the disks IIJ form radialfpassages connecting thelast mentioned longitudinal passages with'thecentral passage (formed by the openings 21). Thus, the hot liquid entering through the inlet I8 will lflow* as indicated by the arrows at the upper portion of Fig. 3.

The hot and cold liquids owing as above explained, are in close proximity to each other and rapid heat exchange will therefore be effected. Of course, if desired, the hot-liquid `line could be connected with the inlet i-B and outlet I1. and the cold-liquid line connected to the inlet. I8 .and outlet I9. Also, should the connections be so made that the now will be the reverse of that indicated by the arrows, the efliciency of the exchanger will 4 not be impaired. It is only necessary that the hot line be connected to one end of the device and the cold line to the other end, and this aids greatly in installation.

From the above detailed description of the invention, it is believed that the construction, use, and operation will at once be apparent, and while there is herein shown and described the preferred embodiment of the invention, it is nevertheless to be understood that minor 'changes may be made therein withoutdeparting from "the vspirit and scope of the invention as claimed.

I claim:

- 1. A heat exchanger comprising a body having one system of spaced communicating passages for l one liquid, -saidbody having an inlet and an outlet forsaid one system, said body also having a second system of spaced communicating passages for another liquid, said body having an additional inlet and outlet for said other system, said passages of said one system being contiguous to said passages of said `second system, some of the passages of said onesystem being radially disposed, some of the passages of said second system being also radially disposed, the radial passages of said one system being disposed between those of said second system.

2. A heat exchanger comprising a body having one system of spaced communicating passages for one liquid, said body having an inlet andan outlet forrsaid one system, said body also having a second system of spaced communicating passages for another liquid, said body having an additional inlet and outlet for said other system,` said passages of said one system being contiguous to said passages of said'second system, some of the passages of each of said systems being disposed longitudinally of and spaced apartcircumferentially of said body, others of the passages of each of said systems being radially disposed and spaced apart longitudinally of said-body, the longitudinal and radial passages of one of saidsystems being disposed between the longitudinaiand radial passages of the other of said systems respectively.

3. A heat exchanger comprising a body having one system of spaced communicating passages for one liquid, said bodyhaving an inlet-and an outlet for said one system, said body also having a second system of` spaced communicating passages for another liquid, said. body having an additional inlet and outlet for said other system,.saidl passages oi said one systembeing contiguous to said passages of said second system, some of the passages of each of said systems being disposed longitudinally of and spacedapart circumferentially of said body, others of the passages of each of said systems being radially disposed and spaced apart longitudinally of said body, the longitudinal and radial passages of one'of saidsystems being disposed between the longitudinal and radial passages of the other of said systems respectively, said body having recesses in bothA ends, therecesses in one end of said body being in conductive communication with said inlet and outlet of said one system respectively and being also in conductive communication with said longitudinal passages of said one system, `the recesses in the'other end of said body being in conductive communicationwith said inlet and outlet of-said `second system respectively and being also in conductive communication with longitudinalpassages of said second system.

4. A heat exchanger comprising an intermediate body having one systemof passagesiior-one liquid and a second system Aof passages for another liquid, each of said systems including connected radial and longitudinal passages; one baffie disk lying against one end of said intermediate body and closing the adjacent ends of the longitudinal passages of said second system, said one bafe disk having openings in conductive communication with the adjacent ends of the longitudinal passages of said one system, one head lying against the outer side of said one baffle disk, said one head having an inlet and an outlet for said one liquid and being recessed to place said inlet and outlet in conductive communication with the openings of said one baffle disk; a second bafe disk lying against the other end of said intermediate body and closing the adjacent ends of said longitudinal passages of said one system, said second bale disk having openings in conductive communication with the longitudinal passages of said second system; a second head lying against the outer side of said second baffle disk, said second head having an inlet and an outlet for said other liquid, said second head being recessed to place its inlet and outlet in conductive communication With the openings of said second baffle disk; and means securing said body, baifie disks and heads in assembled relation.

5. A structure as specified in claim 4; said intermediate body being constructed from identical disks secured side-to-side, said disks having registering openings forming the longitudinal passages of the two aforesaid systems, said disks also having radial grooves forming the radial passages of said two systems.

References Cited in the le of this patent UNITED STATES PATENTS Number 

